City guide / San Mateo County
Title 24 planning in Menlo Park
Preparation guidance for energy compliance documentation in Menlo Park, California. Remote statewide service; local requirements come from your building department.
Hypothetical example / Menlo Park
A major remodel and cooling replacement: keep two local-scope questions open
ILLUSTRATIVE ONLY: a single-family owner proposes a substantial interior remodel and replacement of existing cooling equipment. The architect records the work area, the valuation information supplied for the permit and the equipment changes separately. Before selecting a compliance approach, the applicant asks Menlo Park which provisions of the local ordinance apply to each part. A budget estimate is not treated as the City’s accepted valuation, and choosing a heat pump is not treated as proof that every other energy obligation is satisfied. The consultant studies supported options after the design team confirms the project basis.
Illustrative scenario only; not a statement about local projects, climate or permit rules.
Scenario checklist
- Separate valuation-based work from altered HVAC scope
- Provide the City’s application record and valuation basis
- List retained and changed systems by area served
- Resolve local applicability before final modeling
Menlo Park: two ordinance topics, one coordinated permit package
Project-preparation guidance, not a statement of local requirements. Confirm applicability with your project team and reviewing agency.
The verified CEC entry for Ordinance 1127
The CEC’s 2025 approved-local-ordinances list, checked November 6, 2026, records approval of Menlo Park Ordinance 1127 on April 27, 2026. It lists a mechanical-cooling requirement for altered space-conditioning systems in existing single-family homes, encouraging air-source heat pumps while allowing air conditioners with additional efficiency measures. Separately, it lists efficiency improvements for certain single-family additions and alterations with valuation of $100,000 or more. Both topics belong in early scope review. The CEC summary is not the complete ordinance text, an exception schedule or a calculation of what this property must install.
Valuation is a permit input—not the report price
Ask the City how it establishes valuation and which addition/alteration work the provision covers. A contractor’s preliminary budget, a total construction contract and a permit valuation may serve different purposes; do not substitute one for another without direction. Likewise, the stated CEC approval date is not automatically the City’s effective date or the date controlling this application. Record the City’s applicability answer and its source. This page does not invent a valuation method, aggregation rule, equipment exemption or local filing deadline.
Prepare a two-lane scope worksheet
Use one lane for the addition/alteration work and one for existing-home space-conditioning changes. Each lane needs a plan reference, responsible designer and unresolved question. If both affect the same permit, the coordinated package must show how they fit together; satisfying one topic does not automatically resolve the other. If a question is still with the City, label it open rather than embedding an assumed answer in final calculations.
- Addition/alteration lane: show existing/proposed plans, conditioned boundaries, work descriptions and valuation information already submitted or requested by the City.
- HVAC lane: record existing and proposed heating/cooling equipment, efficiencies, controls, distribution changes and the spaces served; identify the mechanical designer.
- Shared inputs: include the application record, prior accepted energy documents, glazing U-factor/SHGC and assembly information, with provisional selections clearly marked.
- Decision record: attach City direction and the drawing revision used for each option. Keep owner preferences, confirmed requirements and open assumptions in separate columns.
Compare cooling options before buying equipment
The CEC summary explicitly describes an air-conditioner route with additional efficiency measures, not a universal prohibition on air conditioners. Ask what the applicable route requires for this scope. The energy preparer can compare supported assumptions; the mechanical designer remains responsible for appropriate equipment and system design. A product quote or a favorable preliminary model is not evidence that the local requirement has been accepted.
In the illustrative remodel, the owner can ask which inputs change between an air-source heat-pump option and an air-conditioner option, which measures are assumed and which drawings would need revision. Keep that option study provisional until the City’s basis and the design selections are coordinated. No invented compliance score or guaranteed outcome is provided here.
Altered-cooling reach codes explainedEnergy modeling and option studies
Choose the application edition and document family
The statewide 2025 California Energy Code generally applies to permit applications on or after January 1, 2026. Confirm the AHJ-recorded application date and treatment of amendments or refiling. The drawing date, construction start and CEC ordinance approval date do not substitute for that record. Select compatible software/forms and then address the confirmed local layer.
Single-family work may use CF1R design documentation with separate CF2R installation and required CF3R ECC verification. HERS is legacy language on older-cycle records. A detached ADU, attached addition or conversion needs its own scope/classification decision. Commercial work uses applicable nonresidential pathways; the single-family ordinance summary is not a basis for assigning commercial obligations.
Which code edition applies?CF1R documentationADU scopeCommercial documentation
Make revisions traceable to the plans
If the remodel grows, valuation information changes or equipment is substituted, identify what changed before asking for another report. Send the complete plan-check comment and the package actually reviewed, not only the newest architectural file. The preparer and designers can reconcile the affected assumptions and response references. A new PDF cannot resolve an unconfirmed jurisdictional question or certify an installation that has not been verified.
Request remote help with a defined deliverable
Title 24 Lab serves Menlo Park remotely, not from a claimed local office. Review the published residential/commercial square-footage menu, then upload the plans and scope questions for intake. Field testing, acceptance testing, registry fees, CALGreen and AHJ permit fees are separate. The Energy Code is Title 24 Part 6; CALGreen is Part 11. Intake is not production acceptance or permit approval. This educational guide is not legal advice; the City determines applicability.
PricingGet a QuoteSan Mateo County guidePalo Alto guideMountain View guide
Checklist for Menlo Park
- 01Identify which agency reviews permits for your Menlo Park parcel (city, county or other).
- 02Confirm the building climate zone for the exact address using the CEC tool.
- 03Ask which Energy Code cycle applies to your application date.
- 04Ask whether local amendments or reach codes apply to your scope.
- 05Ask how energy forms should be included: on plan sheets, uploaded separately, or both.
County guide: another example
Remodel adding a heat pump water heater
Read the San Mateo County guideQuestions
Does Ordinance 1127 address both HVAC and remodel valuation?
The checked CEC entry lists both topics: altered cooling in existing single-family homes and efficiency improvements for certain single-family additions/alterations valued at $100,000 or more. Ask the City which provisions apply to the actual scope.
Can I use my contractor’s budget as the valuation decision?
Not without confirming the City’s basis. Provide the valuation information and scope used for the permit, and ask how the local provision applies. This guide does not define the City’s calculation or aggregation method.
Must every air conditioner be replaced with a heat pump?
Do not infer that. The CEC summary encourages air-source heat pumps while allowing air conditioners with additional efficiency measures. The applicable route and evidence need City confirmation for this project.
Does choosing a heat pump finish the remodel’s documentation?
No. Envelope work, the applicable local addition/alteration provisions, design forms and required construction records still need coordinated review. An equipment choice is not a complete permit package or an installation/verification certificate.
Do you have an office in Menlo Park?
No. Service is remote and statewide; this page is a planning guide.
Where do I confirm Menlo Park requirements?
With the building department that reviews your permit. Many incorporated cities run their own; confirm whether Menlo Park or San Mateo County reviews your parcel.
How to use the official resources
Government links below are starting points for identifying the authority for the actual property and scope. They are not evidence of an affiliation, an office or approval of this service. Start at Menlo Park’s city site for city department navigation; the county link provides separate county context.
The CEC climate tool supports a location-specific lookup; this guide assigns no climate zone. The CEC Energy Code Support Center separates edition-specific forms and building categories. Confirm the applicable edition, document family and any registration or verification requirements before using a form.
CEC Energy Code Support Center: forms, FAQs and trainingNext step
Preparing a project in Menlo Park?
Published flat pricing from $149 residential and $399 commercial. Upload plans privately; no payment is taken online.